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Dallas-Fort Worth: Latest Ozone Planning Activities

Latest events and activities related to the Dallas-Fort Worth (DFW) area’s compliance with the National Ambient Air Quality Standards (NAAQS) for ground-level ozone.

Last updated: 12/10/2014

New Proposed DFW Attainment Demonstration and Reasonable Further Progress SIP Revisions for the 2008 Eight-Hour Ozone NAAQS

On December 10, 2014, the commission approved proposal of two revisions to the Texas State Implementation Plan (SIP) for the DFW nonattainment area for the 2008 eight-hour ozone standard: the DFW Attainment Demonstration (AD) SIP Revision for the 2008 Eight-Hour Ozone NAAQS (Non-Rule Project No. 2013-015-SIP-NR) and the DFW Reasonable Further Progress (RFP) SIP Revision for the 2008 Eight-Hour Ozone NAAQS (Non-Rule Project No. 2013-014-SIP-NR). The proposed AD SIP revision would incorporate proposed revisions to 30 Texas Administrative Code Chapters 101, 115, and 117.

Two public hearings will be held on these proposed SIP revisions: in Arlington on January 15, 2015 at 6:30 p.m. in the City of Arlington Council Chamber at the Arlington Municipal Building located at 101 W. Abram Street; and in Austin on January 22, 2015 at 10:00 a.m. in Building E, Room 201S, at the commission's central office located at 12100 Park 35 Circle.

The public comment period will open on December 26, 2014, and close on January 30, 2015. Written comments will be accepted via mail, fax, or through the eComments system.

  • All comments on the proposed attainment demonstration SIP revision should reference the “Dallas-Fort Worth Attainment Demonstration for the 2008 Eight-Hour Ozone Nonattainment Area" and should reference Project Number 2013-015-SIP-NR. Comments may be submitted to Kathy Singleton, MC 206, State Implementation Plan Team, Office of Air, Texas Commission on Environmental Quality, P.O. Box 13087, Austin, Texas 78711-3087 or faxed to (512) 239-6188.
  • All comments on the proposed reasonable further progress SIP revision should reference the “Dallas-Fort Worth Reasonable Further Progress State Implementation Plan Revision for the 2008 Eight-Hour Ozone Standard” and Project Number 2013-014-SIP-NR. Comments may be submitted to Kristin Patton, MC 206, State Implementation Plan Team, Office of Air, Texas Commission on Environmental Quality, P.O. Box 13087, Austin, Texas 78711-3087 or faxed to (512) 239-6188.

 If you choose to submit electronic comments, they must be submitted through the eComments system. File size restrictions may apply to comments being submitted via the eComments system. Comments must be received by January 30, 2015.

Emissions Inventory (EI) SIP Revision for the 2008 Eight-Hour Ozone Standard for the Houston-Galveston-Brazoria (HGB) and Dallas-Fort Worth (DFW) Areas

On July 2, 2014, the commission adopted the EI SIP revision for the 2008 Eight-Hour Ozone Standard (Non-Rule Project No. 2013-016-SIP-NR). This SIP revision satisfies the Federal Clean Air Act (FCAA), §172 and §182 requirements for the HGB and DFW nonattainment areas under the 2008 eight-hour ozone standard. The SIP revision includes 2011 emissions inventories for ozone precursors (volatile organic compounds and nitrogen oxides) from point, area, on-road mobile, non-road mobile, and biogenic emissions source categories as the base year emissions inventories for the HGB and DFW areas.

For additional information, please visit the Air Pollution from Ozone Web page.

Public Information Meeting: Eight-Hour Ozone Planning for the DFW Area 

The TCEQ held a public information meeting to provide information on the development of revisions to the state implementation plan (SIP) for the 2008 ozone NAAQS in the 10-county DFW nonattainment area on Thursday, September 5, 2013 at 10:00 a.m. at the North Central Texas Council of Governments (NCTCOG) offices. NCTCOG and United States Environmental Protection Agency representatives also provided updates on local and federal initiatives.

DFW Air Quality Update Presentation

State Implementation Plan Development Presentation

North Central Texas Oil & Gas Vehicle Inventory Study

EPA Presentations

DFW Attainment Demonstration and Reasonable Further Progress SIP Revisions Adopted December 7, 2011

On December 7, 2011, the commission adopted two revisions to the Texas SIP for the DFW nonattainment area for the 1997 eight-hour ozone standard: the DFW Attainment Demonstration SIP Revision for the 1997 Eight-Hour Ozone Standard (Project No. 2010-022-SIP-NR) and the DFW Reasonable Further Progress SIP Revision for the 1997 Eight-Hour Ozone Standard (Project No. 2010-023-SIP-NR). Concurrent with this SIP revision, the commission adopted revisions to 30 Texas Administrative Code, Chapter 115 into the Texas SIP.

For more information on these SIP revisions, including downloadable Portable Document Format (PDF) documents, please visit the SIP Revisions: DFW Attainment and Reasonable Further Progress Demonstrations for the 1997 Eight-Hour Ozone Standard Web page.